1.

If L_(1)= (2.02 +- 0.01)m and L_(2) = (1.02 +- 0.01)" then " L_(1) + 2L_(2) is (in m)

Answer»

`4.06 +- 0.02`
`4.06 +- 0.03`
`4.06 +- 0.005`
`4.06 +- 0.01`

ANSWER :B


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